| 汽车压铸用4Cr5Mo2V大型模具钢640 mm x 1100 mm 锻坯的研制 |
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| 引用本文： | 周许瑚,王石军,都磊,邓力,张永强.汽车压铸用4Cr5Mo2V大型模具钢640 mm x 1100 mm 锻坯的研制[J].特殊钢,2022,43(4):70-74. |
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| 作者姓名： | 周许瑚 王石军 都磊 邓力 张永强 |
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| 作者单位： | 1大冶特殊钢有限公司;
2高品质特殊钢湖北省重点实验室，黄石435001 |
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| 摘 要： | 大冶特钢采用20 t电弧炉+LF精炼+VD脱气、20 t氩气保护电渣炉重熔、1 250～1 280℃高温均质化处理、60MN油压快锻机多向锻造及1 000～1 050℃高温固溶组合技术,生产的640 mm×1 100 mm 4Cr5Mo2V大型模具钢的非金属夹杂物(≤0.5级)、显微组织、横向冲击功(KV2 25～31 J),均高于北美压铸协会NADCA#207-2018标准高级钢质量水平,等向性达到0.95。
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| 收稿时间： | 2022-02-10 |
Development and Production of 4Cr5Mo2V Large Die Steel 640 mm x 1100 mm Forged Bloom for Automobile Die Casting |
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| ZHOU Xu,WANG Shijun,YAN Lei,DENG Li,ZHANG Yongqiang.Development and Production of 4Cr5Mo2V Large Die Steel 640 mm x 1100 mm Forged Bloom for Automobile Die Casting[J].Special Steel,2022,43(4):70-74. |
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| Authors: | ZHOU Xu WANG Shijun YAN Lei DENG Li ZHANG Yongqiang |
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| Affiliation: | 1 Daye special steel Co Ltd;
2 Hubei Provice Key Laboratory of Hight Quality special steel, Huangshi 435001 |
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| Abstract: | By using combination teachnology of 20 t EAF-LF-VD, 20 t argon protection ESR unit remelting, 1 250 ~1 280 ℃ high temperature homogenization treatment, 60 MN oil pressure quick forging machine multiple forging and 1 000 ?1 050 ℃ high temperature solution treatment process, the inclusion(≤0.5 rating) , structure and lateral impact energy (KV2 25 ?31 J) of produced 640 mm x 1 100 mm 4Cr5Mo2V heavy die steel are higher than the requirement in standard NADCA#207-2018 for advanced steel leave,and the isotropy of steel reaches 0.95. |
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